

package kr.ac.ssu.yoobh17.Omok.framework.impl;

import java.util.ArrayList;
import java.util.List;

import android.view.MotionEvent;
import android.view.View;

import kr.ac.ssu.yoobh17.Omok.framework.Input.TouchEvent;
import kr.ac.ssu.yoobh17.Omok.framework.Pool.PoolObjectFactory;
import kr.ac.ssu.yoobh17.Omok.framework.Pool;


public class SingleTouchHandler implements TouchHandler {

	boolean				isTouched;
	
	int					touchX;
	int					touchY;
	
	Pool<TouchEvent>	touchEventPool;
	List<TouchEvent>	touchEvents			= new ArrayList<TouchEvent>();
	List<TouchEvent>	touchEventsBuffer	= new ArrayList<TouchEvent>();
	
	float				scaleX;
	float				scaleY;

	public SingleTouchHandler( View view, float scaleX, float scaleY ){
		
		PoolObjectFactory<TouchEvent> factory = new PoolObjectFactory<TouchEvent>() {

			@Override
			public TouchEvent createObject() {

				return new TouchEvent();
			}
		};
		
		touchEventPool = new Pool<TouchEvent>( factory, 100 );
		view.setOnTouchListener( this );
		
		this.scaleX = scaleX;
		this.scaleY = scaleY;
		
	}
	
	@Override
	public boolean onTouch( View view, MotionEvent event ) {

		synchronized ( this ) {
			
			TouchEvent touchEvent = touchEventPool.newObject();
			
			switch ( event.getAction() ) {
			
			case MotionEvent.ACTION_DOWN:
				
				touchEvent.type = TouchEvent.TOUCH_DOWN;
				isTouched = true;
				
				break;
				
			case MotionEvent.ACTION_MOVE:
					
				touchEvent.type = TouchEvent.TOUCH_DRAGGED;
				isTouched = true;
				
				break;
				
			case MotionEvent.ACTION_CANCEL:
			case MotionEvent.ACTION_UP:
				
				touchEvent.type = TouchEvent.TOUCH_UP;
				isTouched = false;
				
				break;

			}
			
			touchEvent.x = touchX = (int) ( event.getX() * scaleX );
			touchEvent.y = touchY = (int) ( event.getY() * scaleY );
			touchEventsBuffer.add( touchEvent );

			return true;	
		}
	}

	@Override
	public boolean isTouchDown( int pointer ) {
		
		synchronized ( this ) {
			
			if( 0 == pointer ){
				
				return isTouched;
			}
			else{
				
				return false;
			}
		}
	}

	@Override
	public int getTouchX( int pointer ) {
		
		synchronized ( this ) {
		
			return touchX;
		}
	}

	@Override
	public int getTouchY( int pointer ) {

		synchronized ( this ) {
		
			return touchY;
		}
	}

	@Override
	public List<TouchEvent> getTouchEvents() {

		synchronized ( this ) {
			
			int len = touchEvents.size();
			
			for( int i = 0; i < len; i++ ){
				
				touchEventPool.free( touchEvents.get( i ) );
				
			}
			
			touchEvents.clear();
			touchEvents.addAll( touchEventsBuffer );
			touchEventsBuffer.clear();

			return touchEvents;
		}
	}

}
